Extremely Rare Vintage Ionic Performer Analog Synth for Sale

via this auction
Essentially an EMS SYNTHI in keyboard format. These are rare. You can see video of one here. See the Ionic label at the bottom of this post for more.
Via the listing: "This is a very rare vintage analog synth with internal click button patch matrix. 4 on board oscillators, with one that can act as an independent modulator. multiple wave forms. one low pass filter bank,
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